package java7_29;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.stream.Collectors;

public class zuoye3 {
	public static void main(String[] args) throws Exception {
		BufferedReader br=new BufferedReader(new FileReader("fw.txt"));
		ArrayList<String> list=new ArrayList<>();
		String s;
		while((s=br.readLine())!=null){
			list.add(s);
		}
		br.close();
		Collections.shuffle(list);
		System.out.println(list.get(0).split("-")[0]);
	}
}
